Global Patent Index - EP 3243842 A1

EP 3243842 A1 20171115 - METHOD FOR PRODUCING PSEUDOPOLYROTAXANE AQUEOUS DISPERSION

Title (en)

METHOD FOR PRODUCING PSEUDOPOLYROTAXANE AQUEOUS DISPERSION

Title (de)

VERFAHREN ZUR HERSTELLUNG EINER WÄSSRIGEN PSEUDOPOLYROTAXANDISPERSION

Title (fr)

PROCÉDÉ DE PRODUCTION D'UNE DISPERSION AQUEUSE DE PSEUDOPOLYROTAXANE

Publication

EP 3243842 A1 20171115 (EN)

Application

EP 16735092 A 20160108

Priority

  • JP 2015003287 A 20150109
  • JP 2016050511 W 20160108

Abstract (en)

The present invention provides a method for producing an aqueous dispersion of pseudopolyrotaxane that enables the production, by an industrially advantageous method for an aqueous dispersion of pseudopolyrotaxane in which the inclusion amount of a cyclodextrin does not increase with time and which can provide a crosslinked polyrotaxane having sufficient stretchability and breaking strength. The present invention relates to a method for producing an aqueous dispersion of pseudopolyrotaxane containing pseudopolyrotaxane particles in which a polyethylene glycol is included in a cavity of a cyclodextrin molecule in a skewered manner, the method including: an inclusion step of mixing a polyethylene glycol and a cyclodextrin in an aqueous medium to include the polyethylene glycol in a cavity of a cyclodextrin molecule, wherein in the inclusion step, a basic compound is added.

IPC 8 full level

C08B 37/16 (2006.01); B82Y 5/00 (2011.01); C08J 3/03 (2006.01); C08L 5/16 (2006.01); C08L 71/02 (2006.01)

CPC (source: EP US)

B82Y 5/00 (2013.01 - EP US); C08B 37/0015 (2013.01 - EP US); C08G 83/007 (2013.01 - US); C08J 3/005 (2013.01 - US); C08J 3/03 (2013.01 - EP US); C08L 5/16 (2013.01 - EP US); C08L 71/02 (2013.01 - US); C08G 2650/04 (2013.01 - US)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3243842 A1 20171115; EP 3243842 A4 20180711; CN 107108762 A 20170829; CN 107108762 B 20200110; JP 6713702 B2 20200624; JP WO2016111353 A1 20171019; US 10308772 B2 20190604; US 2017349711 A1 20171207; WO 2016111353 A1 20160714

DOCDB simple family (application)

EP 16735092 A 20160108; CN 201680004989 A 20160108; JP 2016050511 W 20160108; JP 2016568756 A 20160108; US 201615540520 A 20160108